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Laser-induced Fluorescence and Dispersed Fluorescence Spectroscopy of NiB: Identification of a New 2II State in 19000-22100 cm-1
甄军峰,王莉,秦成兵,张群,陈旸*
Author NameAffiliationE-mail
甄军峰 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
王莉 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
秦成兵 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
张群 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
陈旸* Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China yangchen@ustc.edu.cn 
Abstract:
The laser-induced fluorescence excitation spectra of jet-cooled NiB radicals have been recorded in the energy range of 19000-22100 cm-1. Eleven bands have been assigned to the [20.77]2II-X2+ transition system for the first time. The dispersed fluorescence spectra related to most of these bands have been investigated. Vibrationally excited levels of the ground electronic state, with v" up to 6, have been observed. In addition, the lifetimes for almost all the observed bands have also been measured.
Key words:  NiB, Laser-induced fluorescence, Dispersed fluorescence, Direct current dis-charge
FundProject:
激光诱导荧光确定NiB自由基一个新的电子激发态:在19000-22100 cm -12II态
Jun-feng Zhen,Li Wang,Cheng-bing Qin,Qun Zhang,Yang Chen*
摘要:
Ni针放电产生的Ni原子与B2H6反应产生NiB自由基,得到了在19000~22100 cm-1的激光诱导荧光光谱. 通过对激光诱导荧光激发谱和色散谱的研究,发现了一个新的电子跃迁序列[20.77]2II-X2+,序列共包括11个振动谱带,光谱分析得到了这个新的电子激发态和基态的跃迁寿命. 在光谱常数和跃迁寿命等数据的基础上,讨论了新发现电子激发态的电子构型.
关键词:  NiB,激光诱导荧光激发谱,激光诱导荧光色散谱,放电
DOI:10.1088/1674-0068/23/06/626-629
分类号: